[media] dvbdev: use adapter arg for dvb_create_media_graph()

Instead of using media_dev argument for dvb_create_media_graph(),
use the adapter.

That allows to create a stub for this function, if compiled
without DVB support, avoiding to add extra if's at the drivers.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/common/siano/smsdvb-main.c

···
 	if (smsdvb_debugfs_create(client) < 0)
 		pr_info("failed to create debugfs node\n");
 
-	dvb_create_media_graph(coredev->media_dev);
+	dvb_create_media_graph(&client->adapter);
 
 	pr_info("DVB interface registered.\n");
 	return 0;

drivers/media/dvb-core/dvbdev.c

···
 EXPORT_SYMBOL(dvb_unregister_device);
 
 
-void dvb_create_media_graph(struct media_device *mdev)
-{
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
+void dvb_create_media_graph(struct dvb_adapter *adap)
+{
+	struct media_device *mdev = adap->mdev;
 	struct media_entity *entity, *tuner = NULL, *fe = NULL;
 	struct media_entity *demux = NULL, *dvr = NULL, *ca = NULL;
 
···
 
 	if (demux && ca)
 		media_entity_create_link(demux, 1, ca, 0, MEDIA_LNK_FL_ENABLED);
-#endif
 }
 EXPORT_SYMBOL_GPL(dvb_create_media_graph);
+#endif
 
 static int dvbdev_check_free_adapter_num(int num)
 {

drivers/media/dvb-core/dvbdev.h

···
 				int type);
 
 extern void dvb_unregister_device (struct dvb_device *dvbdev);
-void dvb_create_media_graph(struct media_device *mdev);
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+void dvb_create_media_graph(struct dvb_adapter *adap);
+#else
+static inline void dvb_create_media_graph(struct dvb_adapter *adap) {}
+#endif
 
 extern int dvb_generic_open (struct inode *inode, struct file *file);
 extern int dvb_generic_release (struct inode *inode, struct file *file);

drivers/media/usb/cx231xx/cx231xx-dvb.c

···
 
 	/* register network adapter */
 	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
-	dvb_create_media_graph(dev->media_dev);
-#endif
+	dvb_create_media_graph(&dvb->adapter);
+
 	return 0;
 
 fail_fe_conn:

drivers/media/usb/dvb-usb-v2/dvb_usb_core.c

···
 		}
 	}
 
-	dvb_create_media_graph(adap->dvb_adap.mdev);
+	dvb_create_media_graph(&adap->dvb_adap);
 
 	return 0;
 

drivers/media/usb/dvb-usb/dvb-usb-dvb.c

···
 		adap->num_frontends_initialized++;
 	}
 
-	dvb_create_media_graph(adap->dvb_adap.mdev);
+	dvb_create_media_graph(&adap->dvb_adap);
 
 	return 0;
 }